Home / 31,725.09-43,780.59-17,385.27

Finding the Fourth Proportional to 31,725.09, 43,780.59 and 17,385.27

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Solution

The fourth proportional to 31,725.09, 43,780.59 and 17,385.27 is: 23,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725.09 : 43,780.59 = 17,385.27 : x
  2. Step 2: Convert to fraction form
    31,725.09/43,780.59 = 17,385.27/x
  3. Step 3: Cross multiply
    31,725.09x = 43,780.59 × 17,385.27
  4. Step 4: Simplify right side
    31,725.09x = 761,137,377.91
  5. Step 5: Solve for x
    x = 761,137,377.91/31,725.09
  6. Step 6: Final answer
    x = 23,991.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.